Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10001769 | Systems and methods for optimizing formation fracturing operations | Jian Huang, Kedar M. Deshpande, Mohammad Reza Safariforoshani, Ovunc Mutlu, Chih-Chau Hwang +5 more | 2018-06-19 |
| 9945220 | Methods and system for creating high conductivity fractures | Rajesh Kumar Saini, Clayton S. Smith, Kern L. Smith, Chih-Chau Hwang, Leonid Vigderman +2 more | 2018-04-17 |
| 9909404 | Method to consolidate solid materials during subterranean treatment operations | Chih-Chau Hwang, Rajesh Kumar Saini, Leonid Vigderman, Duane S. Treybig, Clayton S. Smith +1 more | 2018-03-06 |
| 9497646 | Performance evaluation of services and applications on devices in live wireless environments | Annie George | 2016-11-15 |
| 9404338 | Methods and apparatus for improved cement plug placement | Simon James, Bernard Piot, Michael Montgomery, Gerard Daccord, Radovan Rolovic | 2016-08-02 |
| 9140100 | Movable well bore cleaning device | Gerard Daccord, Diego Moser | 2015-09-22 |
| 9143961 | Switching matrix and test platform | Venkataraman Natarajan, Arun Ananth Bhatji, David Ross Jenkinson | 2015-09-22 |
| 8897144 | Quality of user experience testing for video transmissions | Jie Hui, Mohamad F. Ezzeddine | 2014-11-25 |
| 8826979 | Methods and apparatus for improved cement plug placement | Simon James, Bernard Piot, Joel Rondeau, Michael Montgomery, Gerard Daccord +1 more | 2014-09-09 |
| 8653011 | Gelled hydrocarbon system and method with dual-function viscosifier/breaker additive | Leiming Li, Juliet Edwena Juel | 2014-02-18 |
| 8413719 | Relative permeability modification | Arthur Milne, Eric Gin Wai Lian, Sandra Janette Montoya Padilla, Mario Ulloa, Frederic Vincent Martin | 2013-04-09 |
| 8361935 | Metal free crosslinking of galactomannan | Carlos Abad, Kevin W. England | 2013-01-29 |
| 8247355 | Acidic viscosity enhancer for viscoelastic surfactant fluids | Leiming Li, Lijun Lin, Syed A. Ali, Paul R. Howard | 2012-08-21 |
| 7981845 | Partially neutralized polyhydroxy acids for well treatments | Balkrishna Gadiyar, Sai Aung Zaw Min | 2011-07-19 |
| 7923414 | Rheology modifier comprising a tetrakis(hydroxyalkyl) phosphonium salt for polymer fluids | Lijun Lin, Leiming Li, Syed A. Ali | 2011-04-12 |
| 7902124 | Self-diverting acid treatment with formic-acid-free corrosion inhibitor | Syed A. Ali, Javier Sanchez Reyes, Francois M. Auzerais | 2011-03-08 |
| 7878246 | Methods of perforation using viscoelastic surfactant fluids and associated compositions | Yerik Balabatyrov, Frank F. Chang, Martin Griffith, Liz Morris | 2011-02-01 |
| 7810562 | In-situ formation of solids for well completions and zonal isolation | Huilin Tu, Agathe Robisson, Partha Ganguly | 2010-10-12 |
| 7691789 | Self-cleaning well control fluid | Diankui Fu, Steve Russell | 2010-04-06 |
| 7521400 | Gelled oil with surfactant | — | 2009-04-21 |
| 7387987 | Rheology modifiers | Yiyan Chen, Jesse Lee | 2008-06-17 |
| 7207388 | Non-Damaging Fluid-Loss Pill and Method of Using the Same | Richard Marcinew, Zhijun Xiao | 2007-04-24 |
| 7148185 | Viscoelastic surfactant fluids stable at high brine concentration and methods of using same | Diankui Fu, Yiyan Chen, Zhijun Xiao, Sylvie Daniel | 2006-12-12 |
| 6881709 | Viscosity reduction of viscoelastic surfactant based fluids | Erik Nelson, Bernhard Lungwitz, Keith Ingram Dismuke, Golchi Salamat, Trevor Hughes +6 more | 2005-04-19 |
| 6637517 | Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations | Frank F. Chang, Roger J. Card, Ronnie L. Thomas | 2003-10-28 |